Snowplow



G. C. HAWLEY.

SNOWPLOW.

APPLICATION FILED SEPT.I,192I- V 1,438, 1 1 1, V Patented Dec. 5, 1922.

' vi k INVENTOR.

\ GEORGE C. HAM/LE) Patented Dec. 5, I$ZZ.

" WW stares enoner. o. naw inv, or noorrnsrnn, NEW YORK.

Application filed September T0166 whom: it may concern: v

Be itknown that I, GEORGE Ongl-Inwnnr, a citizen of the United States residing at Rochester, in the county -01 Monroeand State of New York, have invented certain new and useful Improvements in Snowplows, of which the following is a specification. f

The object of this invention is to provide a new and improved type-of snow plow for use on railroads or street railways.

This and vother objects of this invention will be fully illustrated in the drawing, described in the specification and pointed out in the claims at the'end thereof.

In the accompanying drawing:

Figure 1 isaside elevation of the-snowplow.

Figure 2 is a top plan view of thesnow.

plow.

Figure 3 is a front elevation of the snow plow.

Figure tis a detailview of one of the elevating screws used in the snow plow.

In the several figures of the drawlng like reference numerals indicate like parts.

The snow plow forming the subject matter of this invention comprises a suitable car body 1 which is mounted on the car trucks 2 and 3. At the front of the car body is provided the incline 4 which projects forwardly and downwardly therefrom to the track 5.

The front end of the car is provided with the vertical casing 6 formed by the sides 7 and 8 and the back 9. The front of this casing is left open to permit the snow scooped up b the incline 4 to freely enter thereinto. ounted to rotate in the casing 6 are a pair of'vertical screws 10 and 11. Each of these screws is mounted to rotate closely against the rear of the casing 6 which for that purpose is madeup of a pair of curved vertical channels into which the screws project, and in which they partially rotate as indicated in Figure 2.

Both of the screws are driven from a suit able motive power installed either in the car itself or furnished by the trolley or 10- comotive used for moving the plow. The screws rotate in opposite directions, that is the screw 10 illustrated .in Figure 3 rotates in a counter clockwise direction and the screw 11, rotates in a clockwise direction. In this way the centrifugal force acting on the frame of the car body, due to the ro- 1, 1ea 1 Serial tweezers. I

tation of. each of the s cre w s, is balanced as oils are shafts are adapted to rotate.

the housing inwhichthe upper iend'lof screw O'li'toppf the car between the channels forming the rear of easing 6' are mounted the'de'flectingbeams15and'16. Theseflbe'aifns are -lringed"toaa suitable p ost17, and can be swung into any angular position with -re lation thereto and theopentopfof theme mg 5 for a purpose that will" presently appear. "'l he' -rear of the car ,is provided with the quarters for thecrew, suitable-access being had thereto thru the door 18 or any other door that may be provided for this purpose. The top of the rear end of the car is shown elevated over the top of the front part of the car to make it possible for the crew to oversee the plow and the snow filled traok ahead of it during the operation thereof.

The operation of the snow plow is as follows:

The plow is pushed ahead of the locomotive of the trolley car into the snow banks formed on the track. In so doing, the snow ahead of the plowis scooped up by the in cline at the front of the plow and forced into the casing behind the incline. The snow entering the casing is then elevated by the screws which revolve therein, each screw operating to elevate the snow in the part of the casing in which it is rotated. Each of the screws is made up of a spiral'which encircles the shaft thereof 180, in order to prevent any clogging up of the snow in the casing or forming a core in the casing with the screw revolving in the snow. Each of the screws operates to quickly raise the snow scooped up by the incline until it reaches the curved paddles 12 and 13 formed at the top of each of the screws respectively. At

this point the housing arrests the upward motion of the snow. The paddles 12 and 13 then sweep the snow from the housing and '11" is provided with 5 an extension,

n which against the deflecting beams, which can be set to the proper angle to deflect the snow thrown out by the paddles to one side of the plow as desired.

I claim:

1. In a snow plow, the combination of a car body adapted to run on tracks, a casing provided at the front of said car, a pair of conveyor screws mounted in said casing each of said conveyor screws comprising a blade which encircles 180 of the axis of the conveyor, the blades of said conveyors working toward each other and being mounted to distribute their weight evenly on the body of the car body, an incline leading from said casing forwardly and downwardly thereof, a paddle formed integral with each of said conveyor screws at the upper end thereof, said paddles being adapted to throw the snow elevated by said conveyor screws to one side of said car body on the rotation of said screws.

2. In a snow plow, the combination of a car body adapted to run on tracks, a casing provided at the front of said car, a pair of conveyor screws mounted in said casing each of said conveyor screws comprising a blade which encircles 180 of the axis of theconveyor, the blades of said conveyors working toward each other and being mounted to distribute their weight evenly on the body of the car body, an incline leading from said casing forwardly and downwardly thereof,

a paddle formed integral with each of said conveyor screws at the upper end thereof, said paddles being adapted to throw the snow elevated by said conveyor screws to one side of said car body on the rotation of said screws, a semi-circular casing at the top of said screw and partially overhanging said screws, said casing being adapted to arrest the upward motion given the snow by said screws and allowing said paddles forming part of the screws to sweep the snow elevated to said casing to one side of said car body, I

3. In a snow plow, the combination of a screw, said screw comprising a spiral of 180 degrees, a paddle formed integral at the top of said spiral and being slightly curved back over the top of said spiral. I

4, In a snow plow, the combination of a car body, a pair of vertical conveyors mounted to rotate at the front of said car body, each of said conveyors comprising a half of a spiral, an outwardly curved flange formed at the upper end of each of said half spirals, a housing surrounding said conveyors, said housing having an opening in ,the front thereof the full length of said conveyors said casing having an opening at the top to uncover the rear half of the top of said conveyors.

In testimony whereof I affix my signature.

GEORGE c. HAWLEY. 

